受生烃母质控制的干酪根及其热解产物稳定碳同位素分布模式

刘虎; 廖泽文; 戚明辉; 张海祖; 杜军艳; 杨珊

doi:10.11781/sysydz201605652

受生烃母质控制的干酪根及其热解产物稳定碳同位素分布模式

doi: 10.11781/sysydz201605652

刘虎^1,2,
廖泽文^1, ,,
戚明辉²,
张海祖³,
杜军艳⁴,
杨珊¹

1.
中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广州 510640
2. 页岩气评价与开采四川省重点实验室, 成都 610091
3. 中国石油塔里木油田分公司勘探开发研究院, 新疆库尔勒 841000
4. 广西海洋研究院, 南宁 530022

基金项目: 国家自然科学基金项目（41272149和41472109）资助。

详细信息

作者简介:
刘虎(1986-),男,博士,工程师,油气地球化学专业.E-mail:sl122062@163.com.

通讯作者:
廖泽文(1969-),男,博士,研究员,油气地球化学专业.E-mail:liaozw@gig.ac.cn.

中图分类号: TE122.113
计量
- 文章访问数: 820
- HTML全文浏览量: 72
- PDF下载量: 106
- 被引次数: 0
出版历程
- 收稿日期: 2016-01-05
- 修回日期: 2016-07-12
- 刊出日期: 2016-09-28

Stable carbon isotope distribution patterns of kerogen and its derived hydrocarbons constrained by primary biomass

1.
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China
2. Sichuan Key Laboratory of Shale Gas Evaluation and Exploitation, Chengdu, Sichuan 610091, China
3. Research Institute of Petroleum Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
4. Guangxi Academy of Oceanology, Nanning, Guangxi 530022, China

摘要

摘要: 塔里木盆地来源于寒武系—下奥陶统烃源岩的原油与其母质干酪根的稳定碳同位素存在倒转现象，为验证这种同位素倒转并探讨其可能原因，选取华北下花园地区的下马岭组灰质页岩和泥质页岩，以及新疆三塘湖盆地的芦草沟组泥质页岩样品开展热模拟实验。结果在下马岭组灰质页岩干酪根热解残渣和其热解油之间发现了这种碳同位素的倒转分布。与未发现碳同位素倒转现象的下花园地区和三塘湖盆地的泥质页岩样品相比，下马岭组灰质页岩干酪根热解油的稳定碳同位素变化幅度相对较大，而残渣的碳同位素变化幅度相对较小。结合有机岩石学及生物标志化合物综合分析发现，下马岭组灰质页岩中间隔分布的“下花园藻残片”生烃能力相对较差，且几乎没有检测到甾、萜类生物标志化合物；而在另外两组泥岩的热解产物中并没有发现这种现象，显示了下马岭组灰质页岩具有特殊的母质类型或沉积环境。由此可见，下马岭组灰质页岩干酪根及其热解产物之间的稳定碳同位素倒转分布很可能与早期生命体特殊的生物化学组成，或者早期的类异戊二烯烃类在沉积过程中更难以被保存下来等因素有关。
- 同位素倒转 /
- 热模拟实验 /
- 干酪根 /
- 下马岭组 /
- 下花园地区 /
- 华北
Abstract: There exists a stable carbon isotope reversal between crude oils and kerogens from the Cambrian-Lower Ordovician source rocks of the Tarim Basin, NW China. To verify the inverse carbon isotopic pattern and probe the possible mechanism, three shale samples with low thermal maturity were used for thermal simulation experiments, two of which were taken from the Neoproterozoic Xiamaling Formation in Xiahuayuan region, North China (one from argil-laceous shale and the other from calcareous shale) and the third one was from the Permian Lucaogou Formation in Santanghu Basin, Northwest China (argillaceous shale). A reversed carbon isotope distribution pattern between kerogen residue and its pyrolysates was observed for the Xiamaling calcareous shale, which was not found for the Xiamaling argillaceous shale or Lucaogou argillaceous shale. A stronger carbon isotope fractionation was found for the pyrolysates from Xiamaling calcareous shale kerogen than those from argillaceous shale kerogens, and then accordingly a weaker carbon isotope fractionation was determined for the pyrolyzed residues from Xiamaling calcareous shale kerogen. Combined with organic petrology and thermal simulation experiments, the “Xiahuayuan algal relic” from Xiamaling calcareous shale was supposed to have a lower hydrocarbon generation capacity than the mineral bituminous matrix from Xiamaling argillaceous shale and the laminated algae from Lucaogou argillaceous shale. Combined with biomarker distribution features, it was suggested that the reversed carbon isotope pattern, between kerogen residue and its pyrolysates, may be ascribed to the contribution of some special biomass (primarily constituted by n-alkanes) of early life, or the isoprenoid compounds were less preserved in the process of biomass sedimentation.
- reversed carbon isotope pattern /
- thermal simulation experiment /
- kerogen /
- Xiamaling Formation /
- Xiahuayuan region /
- North China

HTML全文

参考文献(27)

[1]	张爱云,蔡云开,初志明,等.沉积有机质中稳定碳同位素逆转现象初探[J].沉积学报,1992,10(4):49-59. Zhang Aiyun,Cai Yunkai,Chu Zhiming,et al.Preliminary study on the reversed distribution of stable carbon isotopes in sedimentary organic matter[J].Acta Sedimentologica Sinica,1992,10(4):49-59.
[2]	刘虎,廖泽文,张海祖,等.干酪根及其演化产物中稳定碳同位素的倒转分布:研究进展及对塔里木盆地海相油气藏研究的启发[J].矿物岩石地球化学通报,2013,32(4):497-502. Liu Hu,Liao Zewen,Zhang Haizu,et al.Review of the study on stable carbon isotope reversal between kerogen and its evolution products:Implication for the research of the marine oil reservoirs in Tarim Basin,NW China[J].Bulletin of Mineralogy,Petrology and Geochemistry,2013,32(4):497-502.
[3]	Hayes J M,Strauss H,Kaufman A J.The abundance of ¹³C in marine organic matter and isotopic fractionation in the global biogeochemical cycle of carbon during the past 800 Ma[J].Chemistry Geology,1999,161(1/3):103-125.
[4]	Welte D H,Hagemann H W,Hollerbach A,et al.Correlation between petroleum and source rock//Ninth World Petroleum Congress.Tokyo:[s.n.],1975.
[5]	徐永昌,沈平,申歧祥,等.煤系有机质热模拟产物的地球化学特征及地质意义[M].兰州:甘肃科学技术出版社,1986. Xu Yongchang,Shen Ping,Shen Qixiang,et al.Geochemical Characteristics and the geological significance of the thermal pyrolysis pro-ducts from the coal-derived organic compounds[M].Lanzhou:Gansu Science and Technology Press,1986.
[6]	张文正.有机质碳同位素的成熟分馏作用及地质意义[J].石油实验地质,1989,11(2):177-184. Zhang Wenzheng.Fractionation of carbon isotopes of organic matter and its geological significence[J].Experimental Petroleum Geology,1989,11(2):177-184.
[7]	陈践发,徐永昌.煤系地层中有机质碳同位素组成特征[J].沉积学报,1992,10(4):44-48. Chen Jianfa,Xu Yongchang.Characteristic of organic carbon isotope composition in coal-bearing strata[J].Acta Sedimentologica Sinica,1992,10(4):44-48.
[8]	Price L C.Thermal stability of hydrocarbons in nature:Limits,evidence,characteristics,and possible controls[J].Geochimica et Cosmochimica Acta,1993,57(14):3261-3280.
[9]	王大锐.油气稳定同位素地球化学[M].北京:石油工业出版社,2000: 164,171-173,179-183. Wang Darui.Stable isotope geochemistry of oil and gas[M].Beijing:Petroleum Industry Press,2000:164,171-173,179-183.
[10]	王传刚,王铁冠,何发歧,等.塔河油田原油稳定碳同位素特征及其成藏意义[J].新疆石油地质,2005,26(2):155-157. Wang Chuangang,Wang Tieguan,He Faqi,et al.Stable carbon isotope and its significance in hydrocarbon accumulation in Tahe Oilfield,Tarim Basin[J].Xinjiang Petroleum Geology,2005,26(2):155-157.
[11]	Schidlowski M.A 3,800-million-year isotopic record of life from carbon in sedimentary rocks[J].Nature,1988,333(6171):313-318.
[12]	Dahl J E,Moldowan J M,Peters K E,et al.Diamondoid hydrocarbons as indicators of natural oil cracking[J].Nature,1999,399(6731):54-57.
[13]	Peters K E,Walters C C,Moldowan J M.The biomarker guide,volume 1:Biomarkers and isotopes in the environment and human history[M].2nd ed.Cambridge:Cambridge University Press,2005.
[14]	Tang Yongchun,Huang Yongsong,Geoffrey S E,et al.A kinetic model for thermally induced hydrogen and carbon isotope fractionation of individual n-alkanes in crude oil[J].Geochimica et Cosmochimica Acta,2005,68(18):4505-4520.
[15]	张中宁,刘文汇,王作栋,等.塔北隆起深层海相油藏中原油及族组分碳同位素组成的纵向分布特征及其地质意义[J].沉积学报,2008,26(4):709-714. Zhang Zhongning,Liu Wenhui,Wang Zuodong,et al.Vertical distribution characteristics and its geological significance for carbon isotopic composition of oils and its group components of deep marine oil reservoirs in Tabei Uplift,Tarim Basin[J].Acta Sedimentologica Sinica,2008,26(4):709-714.
[16]	Liu Hu,Liao Zewen,Zhang Haizu,et al.Comprehensive diagnostic review of the ¹³C-enriched crude oils exemplified by TD2-C and TZ62S in Tarim Basin,NW China[J].Chinese Journal of Geochemistry,2015,34(1):62-68.
[17]	边立曾,张水昌,张宝民,等.河北张家口下花园地区新元古代下马岭组油页岩中的红藻化石[J].微体古生物学报,2005,22(3):209-216. Bian Lizeng,Zhang Shuichang,Zhang Baomin,et al.Red algal fossils discovered from the Neoproterozoic Xiamaling oil shales,Xiahuayuan town of Hebei province[J].Acta Micropalaeontolo-gica Sinica,2005,22(3):209-216.
[18]	张水昌,张宝民,边立曾,等.河北张家口下花园青白口系下马岭组"红藻石"的发现[J].微体古生物学报,2005,22(2):121-126. Zhang Shuichang,Zhang Baomin,Bian Lizeng,et al.A kind of rhodoids discovered from the Neoproterozoic,Qingbaikou system,Xiamaling Formation,Xiahuayuan town,Zhangjiakou,Hebei province[J].Acta Micropalaeontologica Sinica,2005,22(2):121-126.
[19]	Zhang Shuichang,Zhang Baomin,Bian Lizeng,et al.The Xiamaling oil shale generated through Rhodophyta over 800 Ma ago[J].Science in China(Series D:Earth Sciences),2007,50(4):527-535.
[20]	冯乔,柳益群,郝建荣.三塘湖盆地芦草沟组烃源岩及其古环境[J].沉积学报,2004,22(3):513-517. Feng Qiao,Liu Yiqun,Hao Jianrong.The source rock and its palaeo-environment of Lucaogou Formation,Permian in Santanghu Basin[J]. Acta Sedimentologica Sinica,2004,22(3):513-517.
[21]	杜宏宇,王鸿雁,徐宗谦.马朗凹陷芦草沟组烃源岩地化特征[J].新疆石油地质,2003,24(4):302-305. Du Hongyu,Wang Hongyan,Xu Zongqian.Geochemical charac-teristics of Lucaogou source rock in Malang Sag, Santanghu Basin[J].Xinjiang Petroleum Geology,2003,24(4):302-305.
[22]	傅家谟,秦匡宗.干酪根地球化学[M].广州:广东科技出版社,1995. Fu Jiamo,Qin Kuangzong.Geochemistry of kerogen[M].Guang-zhou:Guangdong Science and Technology Press,1995.
[23]	王作栋,陶明信,梁明亮,等.三塘湖盆地上二叠统芦草沟组烃源岩地球化学特征[J].沉积学报,2012,30(5):975-982. Wang Zuodong,Tao Mingxin,Liang Mingliang,et al.Characteris-tics of organic geochemistry of Lucaogou Formation source rocks,Upper Permian,Santanghu Basin[J].Acta Sedimentolo-gica Sinica,2012,30(5):975-982.
[24]	王启军,陈建渝.油气地球化学[M].武汉:中国地质大学出版社,1988:99-101. Wang Qijun,Chen Jianyu.Petroleum geochemistry[M].Wuhan: China University of Geosciences Press,1988:99-101.
[25]	Logan G A,Hayes J M,Hieshima G B,et al.Terminal Protero-zoic reorganization of biogeochemical cycles[J].Nature,1995, 376(6535):53-56.
[26]	Hayes J M.Factors controlling 13C contents of sedimentary or-ganic compounds:Principles and evidence[J].Marine Geology, 1993,113(1/2):111-125.
[27]	Close H G,Bovee R,Person A.Inverse carbon isotope patterns of lipids and kerogen record heterogeneous primary biomass[J]. Geobiology,2011,9(3):250-265.